The immobilizing performance and mechanism of geopolymer and its derivative materials for high-level radionuclides Cs and Sr: a review

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of the Australian Ceramic Society Pub Date : 2024-04-16 DOI:10.1007/s41779-024-01018-6

Jiarui Liu, Yidong Xu, Jialei Wang, Wensheng Zhang, Jiayuan Ye, Rui Wang

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Abstract

How to properly handle the high-level radionuclides cesium(Cs) and strontium(Sr) generated during the nuclear fuel cycle has become a challenging issue. Geopolymer, a novel aluminosilicate inorganic gel material, can be in-situ converted into zeolite and ceramics, exhibiting excellent immobilization capability for radioactive nuclides. This work provides a comprehensive review of the research on the conversion and synthesis methods of geopolymer into zeolite and ceramics, and conducts a detailed analysis of the performance and mechanisms of geopolymers, geopolymer-zeolite composites, and geopolymer ceramics in the immobilization of Cs and Sr. Through a thorough analysis and summary of existing literature, this study presents the optimal conditions for the conversion of geopolymers into zeolite and proposes improved methods for geopolymer ceramic immobilization of Cs. Furthermore, a comparison and analysis are conducted of the applicability, as well as the advantages and disadvantages of these three solidification matrices in immobilizing Cs and Sr. Finally, the challenges and prospects faced by geopolymer and its derivative materials in the immobilization of high-level radionuclides Cs and Sr are discussed.

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土工聚合物及其衍生物材料对高放射性核素铯和锶的固定性能和机理综述

如何妥善处理核燃料循环过程中产生的高放射性核素铯（Cs）和锶（Sr）已成为一个具有挑战性的问题。地聚合物是一种新型铝硅酸盐无机凝胶材料，可就地转化为沸石和陶瓷，对放射性核素具有极佳的固定能力。本研究全面综述了土工聚合物向沸石和陶瓷转化和合成方法的研究，详细分析了土工聚合物、土工聚合物-沸石复合材料和土工聚合物陶瓷固定铯和锶的性能和机理。通过对现有文献的全面分析和总结，本研究提出了土工聚合物向沸石转化的最佳条件，并提出了土工聚合物陶瓷固定铯的改进方法。最后，还讨论了土工聚合物及其衍生材料在固定高放射性核素铯和锶方面所面临的挑战和前景。

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来源期刊

Journal of the Australian Ceramic Society Materials Science-Materials Chemistry

CiteScore

3.70

自引率

5.30%

发文量

123

期刊介绍： Publishes high quality research and technical papers in all areas of ceramic and related materials Spans the broad and growing fields of ceramic technology, material science and bioceramics Chronicles new advances in ceramic materials, manufacturing processes and applications Journal of the Australian Ceramic Society since 1965 Professional language editing service is available through our affiliates Nature Research Editing Service and American Journal Experts at the author''s cost and does not guarantee that the manuscript will be reviewed or accepted